1. CSEB114: Principle of programming
Tutorial 1

2. Question 1
You are required to design a program that will computes and displays a circle’s area and circumference, given its radius. The program should repeatedly continue calculating and displaying the area and circumference until the user enter 0 for radius. Use pseudocode and flow chart. (Area=r2, Circumference=2r)

3. Answer Problem Analysis Input: radius
Output: area and circumference of a circle
Formula: Area=r2
Circumference=2r
Constraint: none

4. Answer Pseudocode Begin Set pi = 3.14 Read radius, r
Calculate Area = pi * r * r
Calculate Circumference = 2 * pi * r
Print Area and Circumference
End

5. Answer Flowchart Begin Set pi = 3.14 Read radius, r Area= pi * r * r
Circ= 2 * pi* r
End
Print Area and Circ

6. Question 2
You are assigned a job that requires you to study some maps that give distances in kilometres and some use miles. You prefer to deal in metric measurement. (Note: 1 mile = km)
Analyse the problem by identifying the input, output, constraints (if any) and the formula required to solve the problem
Design an algorithm to solve the problem using pseudocode and flowchart diagram.

7. Answer Problem Analysis Input: distance miles
Output: distance in kilometers
Formula: kilometer = distance in mile * 1.609
Constraint: none

8. Answer Pseudocode Begin Read distance if distance is in miles
kilometer = distance in miles * 1.609
end_if
Print distance in kilometers
End

9. Answer Flowchart Begin Read distance Distance in miles
kilometer = distance in miles * 1.609
Print kilometer
End
yes no